I am also intrigued about the PRO disk mentioned in the previous reply.  What actually is this?
Marc
Hi Mark,
the PRO disks are 
 "indexes to some miscellaneous personal names
occurring in documents at the
Public Record Office"
by  Stuart Tamblin and others.
includes:
ADM   104/146   Battle of Jutland Casualties, 1916         4,572
ADM   104/147   Battle of Jutland Casualties, 1916         2,238
AVIA   5/20      Air Ferry Crews lost, 1941              58
CHES   24/186/1   Cheshire Jurors, 1813               64
HD   3/3      Secret Service Pensioners, 1827           91
HO   13/16      Prisoners Pardoned, 1804/5            1,038
HO   20/13      Criminal Lunatics, Bethlehem Hospital, 1799-1843   233
HO   20/13      Criminal Lunatics, County Asylums, 1800-39      381
HO   26/56      Prisoners in Newgate Gaol, 1792-93         1,595
MEPO 4/353      Metropolitan Police Attestations, 1877      1,072
RAIL   134/40      Staff of Cornwall Railway, 1889         457
RG   4/3121      Everton, Liverpool Necropolis Burial Ground, 1825   552
WO   71      Court Martial Class List, 1879-1921         451
ADM   36/10774   Muster of HMS Bounty, 1787
ADM   53/37664   Casualty List, HMS Chester, 31 May 1916
ADM   53/47978   Casualty List, HMS Malaya, 31 May 1916
ADM   104/113   WRNS killed in service, 1940-41
ADM   116/1526   Casualty List, HMS Hampshire, 5 June 1916
ADM   116/1717   RNAS Armoured Cars, Russia
ADM   171/16   NZ Medal, 1845-47/1860-61/1863-66
ADM   171/70   RNR Long Service & Good Conduct Medal,
      1909-12, A-C
BT   98/2421-22   Seamen's Crew Agreements, Bristol, 1851
FO   83/646   Légion d'Honneur, 1856
MH   106/2223   Medical Sheets, Napsbury War Hospital,
      1917-20, Hea-Hy
WO   13/346   Musters of the Cornwall Militia, 1781-82
WO   71/343, 691-1322, 1337, 1350-52, 1414    Courts Martial, 1879-1970
WO   100/30   Medal Roll of the 55th Regiment of Foot;
      Crimea, 1855-56
ADM   1/5123/25   Impressed smugglers, 1824      (157 entries)
ADM   1/8463/178   HMS Warrior, trial of crew, 1916   (731)
ADM   36/16491   HMS Neptune, muster, 1805      (796)
ADM   242      RND War Graves, 1914-1920      (441 to date)
AIR   27/2128      617 Squadron - Dambusters crews, 1943   (186)
AIR   28/529      RAF Medan personnel, 1946      (234)
KB   32/23      Millbank Penitentiary returns, 1826   (335)
MH   106/1528   Napsbury Hospital Register, 1918-1919   (199)
WO   93/49      Soldiers executed, 1914-1920      (326)
ZJ   1/658      Canadians Mentioned in Despatches, 1918   (522)
ZJ   1/1460      BEMs, Birthday Honours, 1983      (247)
jaq